Boc-Cys(Acm)-OH

Also known as: Boc-Cys(Acm)-OH, Boc-S-acetamidomethyl-L-cysteine, S-[(acetylamino)methyl]-N-(tert-butoxycarbonyl)-L-cysteine, N-(tert-butoxycarbonyl)-S-(acetamidomethyl)-L-cysteine, Boc-L-Cys(Acm)-OH, MFCD00038252

Boc-Cys(Acm)-OH (CAS 19746-37-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H20N2O5S and a molecular weight of 292.352 g/mol. Key properties include a melting point of 111-114 °C, a boiling point of 531.5±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 275.2±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19746-37-3
Jingsj CID: J-42599-0
Molecular Formula: C₁₁H₂₀N₂O₅S
Molecular Weight: 292.352 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	111-114 °C
Boiling Point	531.5±50.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	275.2±30.1 °C
Exact Mass	292.109283
PSA	130.03000
LogP	1.48
Vapor Pressure	0.0±3.0 mmHg at 25°C
Refractive Index	1.514
Storage Conditions	-20℃

Activity & Biological Data

Additional Information	[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-807.

Frequently Asked Questions

What is the CAS number of Boc-Cys(Acm)-OH?

The CAS number of Boc-Cys(Acm)-OH is 19746-37-3.

What are the molecular formula and molecular weight of Boc-Cys(Acm)-OH?

Boc-Cys(Acm)-OH has molecular formula C11H20N2O5S and molecular weight 292.352 g/mol.

What are the upstream and downstream products of Boc-Cys(Acm)-OH?

For Boc-Cys(Acm)-OH, Upstream Products: S-Acetamidomethyl-L-cysteine hydrochloride, Di-tert-butyl dicarbonate; Downstream Products: L-Cystine, L-Cysteine, Boc-L-cysteine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Boc-Cys(Acm)-OH (CAS 19746-37-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42599-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.